Profile URL: https://hdl.handle.net/20.500.13091/11840
Job Title:Doç. Dr.
Email Address:ftemel@ktun.edu.tr
Main Affiliation:02.01. Department of Chemical Engineering
Status: Current Staff
ORCID:
0000-0002-5502-8647
0000-0002-5502-8647Scopus ID:
57170366300
57170366300YÖK Akademik: A9408C052FC8953D
Google Scholar:
Kd7IULMAAAAJ
Kd7IULMAAAAJWeb of Science ID:
AAR-6170-2021
AAR-6170-2021Name Variants:
Temel, F. T., Farabi
31 results
Scholarly Output Search Results
Now showing 1 - 10 of 31
Article Calixarene Films on Qcm Via Electrospin Coating for Real-Time Monitoring of Phenolic Species in Aqueous Media(SPRINGER, 2024-10-19) Temel, FarabiThis study includes the synthesis of 11 different calixarene derivatives, the preparation of thin film sensors on quartz crystal microbalance (QCM) crystals, and the specification of sensor-analyte pairs by examining the sensing properties of these sensors against different phenolic compounds such as p-nitrophenol (PNP), phenol (PHE), p-chlorophenol (PCP), and m-nitrophenol (MNP) in the aqueous medium. For this purpose, calixarene derivatives with different structures were first synthesized and characterized using spectroscopic methods such as Proton nuclear magnetic resonance (1H-NMR) and Fourier-transform infrared spectroscopy (FTIR). Detection studies were carried out for proposed phenolic compounds with calixarene-based QCM sensors obtained by electrospinning. At the beginning of the experiments, sensor-analyte pairs were determined according to the values at which the highest sensor frequencies were observed. Therefore, according to the highest sensor responses towards 5 x 10-5 M analytes, the sensor-analyte pairs were determined as QCM-5 for PNP (17.8 Hz) and MNP (3.8 Hz). Also, for PHE and PCP, the highest responses were observed as 4.1 Hz and 4.0 Hz in the QCM-11 and QCM-1 sensors, respectively. In further experiments, determined sensor-analyte pairs were tested at different analyte concentrations. In addition, the limits of detection (LOD) of the sensors were calculated from different analyte concentration studies such as 0.580 (QCM-5), 0.659 (QCM-11), 0.490 (QCM-1), and 0.466 (QCM-5) mM against PNP, PHE, PCP, and MNP, respectively. Interactions between sensor-analyte pairs were evaluated in terms of adsorption kinetics. It was observed that the relationships between the sensor responses and the analyte concentration were highly consistent with the Freundlich isotherm. In addition, repeatability and stability tests of the sensors were performed, and it was observed that they exhibited good repeatability and stability properties. Finally, selectivity between analytes was assessed, and the highest selectivity was observed as with the QCM-4 sensor versus p-nitrophenol. It was found that the selectivity of the sensor to PNP was 21.1 times compared to PHE and PCP and 74 times compared to MNP.Article Citation - WoS: 29Citation - Scopus: 28Selective Chiral Recognition of Alanine Enantiomers by Chiral Calix[4]arene Coated Quartz Crystal Microbalance Sensors(SPRINGER HEIDELBERG, 2019-04-01) Temel, Farabi; Erdemir, Serkan; Tabakcı, Begüm; Akpınar, Merve; Tabakcı, MustafaWe describe the synthesis of new chiral calix[4]arene derivatives having (R)-1-phenylethylamine, (S)-1-phenylethylamine, (R)-2-phenylglycinol, and (S)-2-phenylglycinol moieties, and chiral recognition studies for enantiomers of some selected -amino acid derivatives such as alanine, phenylalanine, serine, and tryptophan using a quartz crystal microbalance (QCM). Initial experiments indicated that the highest selective chiral recognition factor was 1.42 for alanine enantiomers. The sensitivity, limit of detection, and time constant for l-alanine were calculated as 0.028 Hz/M, 60.9 M, and 36.2 s, respectively. The results indicated that real-time, sensitive, selective, and effective chiral recognition of alanine enantiomers was achieved with a QCM sensor coated with a chiral calix[4]arene derivative having (R)-2-phenylglycinol moieties.Article Citation - WoS: 22Citation - Scopus: 24Rapid and Real-Time Detection of Arginine Enantiomers by Qcm Sensor Having a Calix[4]arene Receptor Bearing Asymmetric Centers(ELSEVIER, 2019) Temel, Farabi; Erdemir, Serkan; Özçelik, Egemen; Tabakcı, Begüm; Tabakcı, MustafaThis paper describes the sensing studies of a chiral calix[4]arene receptor (5) having (R)-2-phenylglycinol moiety for arginine enantiomers (D-/L-arginine) by using Quartz Crystal Microbalance (QCM) technique. The initial experiments have revealed that the chiral calix[4]arene 5 coated QCM (CCC-QCM) sensor showed good sensing for arginine enantiomers, such that it has exhibited higher sensing towards D-arginine than that of L-arginine. It has been determined that the sensitivity, limit of detection values of CCC-QCM sensor for the D-/L-arginine solutions as 0.024/0.023 Hz/mu M and 0.38/1.29 mu M, respectively. On the other hand, the racemic mixture studies were optimized using the response surface methodology with central composite design. Consequently, it has been demonstrated that the QCM sensor modification with a calix[4]arene receptor bearing asymmetric centers provided rapid, real-time, sensitive and effective sensing of arginine enantiomers.Article The Removal of Acid Textile Dyes by Adsorption Method: Optimization, Kinetics, Isotherm, and Thermodynamics(Konya Teknik University, 2025) Turkyilmaz, Mehmet; Temel, FarabiIn this study, the removal of Acid Red 337 (AR 337) and Bemacid Red (BR) dyes from aqueous solutions by the synthesized Co or Ni 2-(naphthalen-1-yloxy) acetohydrazide adsorbents (Co or Ni/compound 3 complexes) was investigated. Therefore, 2-(naphthalen-1-yloxy) acetohydrazide was synthesized from 1-naphthol, and the complexation of this compound with Cobalt or Nickel metal was carried out to obtain an adsorbent. The structures of the obtained compounds were characterized by 1H NMR and FT-IR. In further experiments, the batch method was conducted and evaluated based on contact time (1-60 min), pH (3-12), the dosage of Co or Ni organic complexes (0.02-0.2 g/L), and initial dye concentration (15-100 mg/L) regarding removal efficiency. The optimum conditions from the experimental data were obtained as 50 mg/L BR-100 mg/L AR 337 initial concentration, pH 6.7, 25-40 min. contact time, and 0.1 g adsorbent dosage for BR and AR 337 dyes, respectively. The maximum adsorption capacity obtained under optimum conditions was calculated as 461.14 and 861.8 mg/g for BR and AR 337, respectively, for a contact time of 40 min. Additionally, the Langmuir, Freundlich, Dubinin-Radushkevich, and Temkin isotherm models, along with the Pseudo-first-order, Pseudo-second-order, Weber-Morris, and Evolvich kinetic models, were applied to the experimentally obtained results under optimal conditions, and the model constants were calculated. When R-2 values were evaluated in terms of adsorption kinetics, it was seen that the pseudo-second-order kinetic model was a more compatible model for both dyes. Additionally, high correlation coefficients for BR and AR 337 were obtained in Temkin and Langmuir adsorption isotherm models, respectively. Thermodynamic analyses: It was found that the enthalpy change of AR 337 dye (triangle H-o<0) was negative and, therefore, exothermic, while the enthalpy change for BR (triangle H-o>0) was positive and, therefore, endothermic. The fact that the standard free energy change (& boxv;triangle G(o)& boxv;>20 kJ/mol) values were negative for both dyes indicates that the adsorption was physical and spontaneous. As a result, the proposed Co or Ni organic complexes were found to be promising in dye removal.Conference Object Toluenin P-ter-bütilkaliks[4]aren Üzerine Adsorpsiyonunda Merkezi Kompozit Tasarımın Uygulanması(INSAC, 2019) Kutluay, Sinan; Temel, Farabi; Baytar, Orhan; Şahin, Ömer; Tabakcı, MustafaBu çalışmada, adsorbent olarak p-ter-bütilkaliks[4]aren kullanılarak toluene karşı gaz adsorpsiyon özellikleri incelenmiştir. Bu amaçla, merkezi kompozit tasarım (MKT) temelli Yanıt Yüzeyi Metodu (YYM) uygulanarak, adsorpsiyon prosesi üzerine önemli derecede etkisi bulunan adsorpsiyon süresi (30-70 dk.), başlangıç konsantrasyonu (10-15 ppm) ve sıcaklık (25-40°C) gibi adsorpsiyon koşullarının deneysel tasarımı ve optimizasyonu gerçekleştirilmiştir. MKT temelli YYM, adsorpsiyon koşulları ile adsorpsiyon kapasitesi arasındaki ilişkiyi daha iyi anlamak için bir yaklaşım geliştirmek üzere >%95 güven düzeyi (p <0,05) ile varyans analizi (ANOVA) kullanılarak başarıyla uygulanmıştır. Çıktı Yanıtını tahmin etmek için YYM tarafından bir ampirik model gelirştirilmiştir. ANOVA, yüksek bir regresyon katsayısı değeri (R2=0,9996) ile regresyon modelinin tatmin edici öngörüsü türetilmiştir. Çok değişkenli deney tasarımı ile tahmin edilen maksimum adsorpsiyon kapasitesi için optimum proses koşulları; 69,88 dk. adsorpsiyon süresi, 14,95 ppm başlangıç konsantrasyonu, 28,73°C adsorpsiyon sıcaklığı olarak belirlenmiştir. MKT temelli YYM kullanılarak bulunan optimum adsorpsiyon koşulları altında, gaz fazındaki toluen için maksimum adsorpsiyon kapasitesi ise 148,46 mg/g olarak tespit edilmiştir.Article Citation - WoS: 76Citation - Scopus: 80Removal of Methylene Blue From Aqueous Solutions by Silica Gel Supported Calix[4]arene Cage: Investigation of Adsorption Properties(PERGAMON-ELSEVIER SCIENCE LTD, 2020-02-01) Temel, Farabi; Turkyılmaz, Mehmet; Küçükçongar, SezenThe silica gel supported dinitro calix[4]arene cage (DNCC) was successfully prepared by immobilization of 3-glycidoxypropyl-bonded stationary phase (GBS) on p-tert-butylcalix[4]arene derivative having p-nitro benzyloxy moieties. The structural and composition analysis of the DNCC was performed by FT-IR, XRD, EDX, SEM, BET, and TGA techniques. After that, the proposed polymeric material as an adsorbent was used for the adsorption of methylene blue (MB) from aqueous solutions. Initial adsorption experiments demonstrated that DNCC showed outstanding performance for the removal of MB from aqueous solutions. Furthermore, many adsorption experiments were performed to evaluate the effects of some adsorption criteria on the MB adsorption. The MB adsorption capacity of DNCC was obtained approximately 212.770 mg g(-1). Besides, thermodynamic parameters were evaluated and it was concluded that the MB adsorption came true in exothermically and spontaneously. Adsorption phenomena of MB on DNCC were clarified by the investigation of isotherm and kinetic criteria. Finally, the applicability of proposed adsorbent for MB adsorption was investigated in real samples such as tap water and textile wastewater.Conference Object Bakır Nanopartikülün Kesme Sıvısı Katışkısı Olarak Kullanılabilirliğinin İncelenmesi(IGSCONG, 2023) Şirvan, Onur Can; Çetin, Muhammet Hüseyin; Temel, Farabi; Özçelik, Babür; Türköz, MevlütBu çalışmada kesme sıvılarının tribolojik performansının geliştirilmesi hedeflenmiştir. Bunun için kesme sıvısına jelatin kaplı bakır nanopartikülleri (CuNP) eklenerek kesme sıvısının yağlayıcılık ve soğutma performansı geliştirilmiştir. Çalışmada sfero dökme demir malzeme üzerinde sabit kesme hızı, ilerleme ve derinlik parametreleri kullanılarak frezeleme yapılmış, bor solüsyonu (%5 bor yağı + su) ile CuNP katkılı kolloidal solüsyonun performansı karşılaştırılmıştır. Ölçülen kesme kuvvetleri ve işlenen malzemenin yüzey pürüzlülük değerleri incelendiğinde, CuNP katkılı süspansiyon ortamında yapılan deneylerde kesme kuvvetlerinin bor solüsyonuna göre %2,57 daha düşük olduğu, yüzey pürüzlülük değerlerinin ise %24,49 daha fazla olduğu görülmüştür.Article Citation - WoS: 25Citation - Scopus: 22A Phenyl Glycinol Appended Calix[4]arene Film for Chiral Detection of Ascorbic Acid on Gold Surface(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2019-10-01) Akpınar, Merve; Temel, Farabi; Tabakcı, Begüm; Özçelik, Egemen; Tabakcı, MustafaThis paper describes the synthesis of new chiral calix [4]arene derivative having (R)-2-phenylglycinol moiety (compound 6), and its chiral recognition studies for ascorbic acid (AA) enantiomers by using Quartz Crystal Microbalance (QCM). Initial experiments indicated that the outstanding selective chiral recognition (alpha) was observed as 2.61 for L-enantiomer of AA. The sensitivity (S) and the limit of detection (LOD) values for L-AA were calculated as 0.0226 Hz/mu M and 0.63 mu M, respectively. Furthermore, the sorption behavior and mechanism of AA onto compound 6 film were evaluated and the sorption data exhibited a good correlation with the Freundlich isotherm models. The maximum uptake of L-AA by the sensor was found as 5895.76 mg/g. In conclusion, chiral recognition of AA enantiomers as real-time, sensitive, selective and effective was performed by a calixarene derivative coated QCM sensor.Article Citation - WoS: 26Citation - Scopus: 27Investigation of High-Performance Adsorption for Benzene and Toluene Vapors by Calix[4]arene Based Organosilica (cbos)(ROYAL SOC CHEMISTRY, 2020) Temel, Farabi; Kutluay, SinanThe immobilization of a calix[4]arene derivative bearing methyl ester moieties onto mesoporous silica was successfully achieved to obtain calix[4]arene based organosilica (CBOS). IR spectroscopy, X-Ray powder diffraction, energy-dispersive spectroscopy, and scanning electron microscopy analysis were carried out for the characterization of the CBOS. After that, the proposed mesoporous silica-supported adsorbent was studied for the adsorption of benzene and toluene vapors, which are essential VOCs. The effects of operating parameters on the adsorption of these vapors with the CBOS adsorbent were analyzed and optimized by applying response surface methodology (RSM)-central composite design (CCD). According to initial experimental results, CBOS exhibited excellent performance for these vapors. The adsorption capacities of calix-3, GBS, and CBOS adsorbents were determined to be 203, 357, and 606 mg g(-1)for benzene vapors, respectively, while they were found to be 258, 394 and 672 mg g(-1)for toluene vapors, respectively. Thus, the proposed CBOS adsorbent showed better adsorption performance when compared to its precursors. In addition to the distinctive adsorptive behavior, the CBOS adsorbent exhibited a high reproducibility adsorption/desorption capacity after five consecutive cycles. After the fifth adsorption/desorption cycle, the CBOS retained 94.2% and 95.1% of its initial adsorption capacities for benzene and toluene, respectively. Finally, adsorption phenomena of benzene and toluene vapors onto CBOS were evaluated in terms of isotherm and kinetic parameters.Article Citation - WoS: 33Citation - Scopus: 31One Novel Calix[4]arene Based Qcm Sensor for Sensitive, Selective and High Performance-Sensing of Formaldehyde at Room Temperature(ELSEVIER, 2020-05-01) Temel, FarabiThis work designs the synthesis of a novel amino morpholine schiff base functionalized calix[4]arene cage (SCC), its deposition onto Quartz Crystal Microbalance (QCM) crystal surface, and usage for the selective detecting of formaldehyde (HCHO). The SCC modified QCM sensor has been characterized by contact angle measurements and microscopy images. Initial experiments revealed that the frequency response decreased significantly which means that there was a good interaction between the SCC molecules and HCHO. The proposed sensor exhibited a linear response towards HCHO in different concentrations ranging from 1.85 to 9.25 ppm, having the high sensitivity (S) and low limit of detection (LOD) being 18.324 Hz/ppm and 0.67 ppm, respectively. Furthermore, the adsorption behavior and mechanism of HCHO onto the QCM sensor were investigated for this sensing system and the adsorption data exhibited a good correlation with the Freundlich and Langmuir-Freundlich adsorption models in terms of the regression coefficient. The QCM sensor showed outstanding selective performance to HCHO among %97 RH and some a number of interfering volatile organic compounds (VOCs) such as chloroform, dichloromethane, acetone, n-hexane, methanol, xylene, and ammonia. Thus, real-time, sensitive, selective and effective recognition of HCHO by the sensor can be explained some adsorption mechanisms such as size-fit concept, three-dimensional structures of molecules and interaction between moieties of the sensible film layer and analyte molecules such as hydrogen bonding interactions.
Research Topics
Domains
Physical Sciences
Fields
EngineeringChemistryChemical EngineeringEnvironmental Science
Subfields
Biomedical EngineeringSpectroscopyBioengineeringWater Science and TechnologyElectrical and Electronic Engineering
Specific Research Areas
Acoustic Wave Resonator Technologies
Molecular Sensors and Ion Detection
Analytical Chemistry and Sensors
Adsorption and biosorption for pollutant removal
Gas Sensing Nanomaterials and Sensors
Sustainable Development Goals
6CLEAN WATER AND SANITATION
4
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3GOOD HEALTH AND WELL-BEING
2
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539
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15
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0
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Publication Collaboration
| Affiliation Name | Count |
|---|---|
| Konya Technical University | 22 |
| Selçuk University | 9 |
| Siirt Üniversitesi | 3 |
| Gebze Technical University | 1 |
| Karabük University | 1 |
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Data obtained from OpenAlex
| Journal | Count |
|---|---|
| Konya mühendislik bilimleri dergisi (Online) | 2 |
| JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY | 2 |
| TALANTA | 2 |
| COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1 |
| Environmental Monitoring and Assessment | 1 |
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Scopus Citation Count
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Scopus Citations per Publication
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